Door latch



June 2, 41931. w. c. DEvEREAUx DOOR LATCH Filed Aug. 1l, 1925 2 Sheets-Sheet l June 2, 1931. w. c. DEVEREAUX DOOR LATCH 2 Sheets-Sheet 2 Filed Aug. 11, 1925 Patented June 2, 1931 PATENT OFFICE WILLIAM C. DEVEREAUX, OF DETROIT, MICHIGAN" DOOR LATCH Application led August 11, 1925. Serial No. 49,508.

This invention relates generally to door latches particularly designed for use upon the doors of vehicle bodies and consists of certain novel features of construction, combinations and arrangements of parts as will be more fully described and pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a perspective view of a door latch embodying my invention with the cover plate removed. y

Figure 2 is a rear elevation of the latch shown in Figure 1. n

Figure 3 is a vertical sectional view through the latch.

Figure 4 is an inside elevation of the latch shown in Figure 1.

Figure 5 is a view similar to Figure 4 but showing the spindle in lowered position and the dog in operative position. l l

Referring now to the drawings, the numeral 1 designates a latch case plate that is preferably secured to the inner side of the door and is provided at its forward edge with a laterally extending flange 2 that is secured to the outer edge of the door. Slidably mounted on the case plate 1 is a latch bolt 3 having a fiat shank 4 and an enlarged head 5. `As shown, the head 5 normally extends through the lateral flange 2 of the case plate and is adapted to engage a suitablekeeper` (not shown) upon the door jamb of the vehicle body, while the shank 4 extends between spaced guide lugs 6 struck out from the case 5 plate 1 and is provided at spaced points throughout its length with a depending eX- tension 7 and a lateral extension 8. Any suitable means such as the helical spring 9 may be employed for normally holding the bolt 3 in projected position. As shown, this spring 9 is preferably anchored upon the case plate l and has a depending arm 10 that engages the forward wall 11 of a substantially V- shaped recess 12 in the bolt shank 4.

For retracting the bolt 3 against the tension of the spring 9, I preferably provide a suitable roll-back 13 that is adapted to be operated from the outside of the door, and a vertical spindle 14 that is adapted to be operated from the inside of the door. As shown,

the roll-back 13 has a hub 15 journaled in the case plate 1 adjacent to the lateral flange 2 and 4is engageable with the depending extension 7 of the bolt shank, while the spindle 14 is journaled in suitable bearings 16 proer jecting inwardly from the case. plate and has intermediate its ends a suitable crank portion 17 that is engageable with the lateral extension 8 of the bolt shank. Thus, with this construction, the roll-back 13 may be rocked rearwardly by any suitable means (not shown) against the extension 7 to retract the bolt and the spindle 14 may be rotated by any suitable handle (not shown) to cause the crank portion 17 to move against the extension 8 to retract the bolt. The spring 9 will always exert a pressure against the bolt shank urging the same forwardly.

In order that the outside bolt retracting means may be rendered inoperative from the inside of the vehicle body I preferably provide a dog 20 that is pivoted on the case plate 1 below the bolt 3 and is provided at its for wardv free end with a hook or shoulder portion 21 that is adapted to be moved in advance of a depending shoulder or extension 22 of the roll-back hub 15 to prevent the rollback Vfrom being operated to retract the bolt.

In order that the dog 20 may be controlled and rendered effective or ineffective by the manipulation of the inside bolt retracting means, the spindle 14 is mounted for rectilinear movement in the bearing 16 and car ries at its lower end a ring or washer 23 that engages a suitable slot or recess 24 in the end of a rearward extension 25 of the dog 20. Thus, with this construction, the hooked portion 21 of the dog 20 may be moved to operative position in advance of the shoulder 22 of the roll-back hub by merely pressing the spindle 14 downwardly so that the ring 23 will rock the dog 20 to raise the free end thereof into operative position. Likewise the roll-back may be released by raising the spindle 14 so that the ring 23 will swing the dog 20 on its pivot in the opposite direction to lower the free hooked end of the dog into inoperative position. Any suitable means such as the leaf spring 26 may be used to normally hold the spindle 14 in raised position. ils shown, this spring 26 is preferably anchored on the back of the case plate l and has at its lower end an inwardly extending return-bent finger Q7 that is engageable with an, annular recess or groove 28 in the spindle 14 at the lower end thereof.

rlhus, 'from the foregoing description it will be readily apparent that the ring 9.3 is always free to turn in the slot Q4, hence the spindle l-i may be operated when in lowered position (see Figure or raised position (see Figure Ll) to retract the bolt 3. It will also be apparent that the dog 2() may be easily and quickly moved to either operatve or inoperative position by rectilinear movement of the spindle 14.

llvlhile it is believed that `from the foregoing description, the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

That I claim as my invention is:

1. In a. latch, the combination with a. bolt retracting` member, of an upright spindle joui-nailed in aligned bearings for rotary movement, and means for clogging the first member rendered effective or ineffective by the manipulation of the spindle.

2. In a latch, the combinati-on with a bolt retract-ing member, of a second bolt retracting member journaled in aligned bearings for both rotaryv and rectilinear movement, and means for clogging the first member rendered effective or ineffective by a rectilinear movement -of the second member.

3. In a latch, the combination with a bolt retracting member, of a second bolt retracting member journaled in aligned bearings for both rotary and rectilinear movement, and means for rendering the first member inoperative including dog engageable with the first member, and means on the second member engageable with the dog rendered effective or ineffective by rectilinear movement of the second member.

i. In a latch, the combination with a bolt reti-acting member, of a second bolt retracting member journaled in aligned bearings for both rotary and rectilinear movement, and means for rendering the first member inoperative including a pivoted dog engagable with the first member controlled and rendered ineffective by rectilinear movement of the second member.

5. In a latch, the combination with a bolt retracting member, of a second bolt retracting member jonrnaled in aligned bearings for rectilinear movement, and means for rendering the first member inoperative including a dog having a slotted connection with the second member.

G. In a latch, the combination with a bolt retracting member, of a second bolt retracting member mounted for rectilinear movement, and means for rendering the first member inoperative including a dog engageable with the first member, and a ring on the second member engageable with the dog.

7. In a latch, the combination with a bolt retracting member, of a second bolt retracting member mounted for rectilinear movement, and means for renderingl the first member inoperative including a ring on the second member, and a dog engageable with the first member having a slot receiving said ring.

8. In a latch, the combination with a spring projected bolt,rof a bolt reti-acting member having a shoulder, a second bolt retracting member journaled in aligned bearings for rectilinear movement, and means for rendering the first member inoperative including a dog engageable with the shoulder rendered effective by rectilinear movement of the second member.

9. In a latch, the combination with a substantially' vertical spindle, of a rollback having a shoulder, and means for clogging the rollback including a pivoted member having a shoulder engageable with the shoulder aforesaid, and a part fixed on the spindle engageable with said member.

10. In a latch, the combination with a bolt retracting member, of a second bolt retracting member journaled in aligned bearings for both rotary and rectilinear movement, and means for rendering the first memberinoperative including a dog movable into the path of the first member, and means connected to the dog controlled and rendered effective by rectilinear movement of the second member.

11. In a latch, the combination with a bolt retract-ing member, of a second bolt retracting member journaled in aligned bearings for both rotary and rectilinear movement ymeans controlled and rendered effective by rectif linear movement of said second member for clogging said first member, and yieldable means for detachably holdin said second member in neutral position.

12. In a latch, the combination with a bolt retracting member, of a second bolt retracting member mounted for rectilinear movement, and means for (logging the first member including an element engageable with the first member, and actuating means for said element including a separate part controlled and rendered effective by the manipulation of the second mentioned member.

13. In a latch, the combination with a bolt retracting member, of a second bolt retracting member mounted for rectilinear movement, and means for clogging the first member including an element engageable with the first member, and means for holding. said elefree ment in operative position, said last mentioned means including a separate part controlled and rendered effective by the manipulation of the second mentioned member.

14. In a latch, the combination with a bolt retracting` member, of a second bolt retracting member `iournaled in aligned bearings for both rotary and rectilinear movement, and means for rendering the first member inoperative including a dog for limiting movement of the first member, and means for holding the dog in operative position controlled and rendered effective by rectilinear movement of the second member.

15. In a latch, the combination with a pair of independently operable bolt retracting members, of means for rendering one of said members inoperative by the movement of the second member, said means including a projection on the second member, and a shiftable part having a longitudinally extending slot receiving said projection.

16. In a latch, the combination with a pair of independently operable bolt retracting members, of means for rendering one of said members inoperative by the movement of the second member, said means including a projection on the second member, and a pivotally mounted part having a slotted connection with said projection.

17. In a lock, in combination, a rotary slidable spindle, a pivotal locking dog operated by said spindle, said dog having a notched arm adjacent the spindle, a circumferential arcuate rib on said spindle entering said notch to move the dog upon sliding the spindle, said rib and notch permitting rotation of the spindle independently of the position of the dog. Y

18. A latch mechanism having a latch bolt, a. retractor, for said bolt, a lever pivoted at one end and engageable with said retractor at the other end for locking said retractor against movement, and an axially movable shaft, engaging said lever adjacent its pivotal point whereby axial movement of said shaft in one direction moves said lever to lock in position. y

19. In a lock, in combination, a rotary slidable spindle, a pivotal locking dog operated by said spindle, cooperating engaging parts on said dog and spindle, the arrangement of said parts being such as to permit rotation of the spindle independently of the position of the dog and to permit moving the dog upon sliding the spindle.

20. A latch for vehicle doors having, in combination, a casing, a latch movable in said casing, spring means for moving said latch outwardly, a latch operating' spindle mounted for both rotary and longitudinal move.- ment, a collar fixed on said spindle, and a locking member having a notch receiving said collar, said locking member being moved into and out of locking engagement with said roll-back, as said spindle is shifted longitudinally.

21. A latch for vehicle doors having, in

combination, a casing, a latch slidably disposed in said casing, spring means for moving said latch outwardly a roll-back engaging said latch for moving said latch inwardly, a vertical spindle rotatably and slidably mounted in said casing and having a crank portion engaging said latch to move said latch inwardly, and a locking dog operatively connected to said spindle and adapted to be moved into and out of locking engagement with said roll-back upon shifting said spindle longitudinally.

22. A latch mechanism having a latch bolt, a retractor for said bolt, a pivoted lever engageable with said retractor for locking said retractor against movement, an axially movable and rotatable shaft, and means associated with said shaft and lever whereby axial movement ofsaid shaft actuates said lever.

23. A latch for vehicle doors including a latch bolt, a roll-back for actuating the bolt, a vertical spindle mounted for rotary and rectilinear movement and having a crank portion for actuating the bolt, a dog engageable with the roll-back to render the latter inoperative, and a connection between said spindle and dog operable upon manipulation of said spindle to actuate the dog.

24. A latch for vehicle doors having, in combination, a casing, a latch, spring means for moving said latch outwardly, a rollback for moving said latch inwardly, means for locking said rollback, and a sliding rotary spindle engaging said latch and said locking means, said spindle serving upon being ro- Y tated to move said latch inwardly and upon being shifted to move said locking means into and out of engagement with said rollback.

25. A latch for vehicle doors having, in combination, a latch, a rollback, means for locking said rollback, and a single means having a rotary and a sliding movement for respectively actuating said latch independent of said rollback and actuating said locking means.

26. In a door latch, an operating member capable of both rotary and longitudinal movements, a latch bolt adapted to be operated by said member when it is rotated,

Va member operable independently of the member aforesaid to operate the bolt, and a dog for the second mentioned operating member adapted to be operated when said member is moved longitudinally.

In testimony whereof I affix my signature.

WILLIAM C. DEVEREAUX. 

